Sunday 27 October 2019

On Fast Growing Hierarchies

See A Concrete Way to See What Computable Functions Actually Are and The Skeleton in the Closet.


See also Rado on Well-defined Non-computable Numbers. In my first attempt to write a book, I had a bit on syntactic definitions of sequences like this. That was in 2011 and it ended with this episode:  On Psychobotanics and Neurology, and on being pushed about:




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